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随着农村人民生活水平的提高,彩电入户率越来越高。目前在有线电视尚未普及的情况下,用户能收看到的电台节目还较少(一般为4—5个),且个别台收视质量不高。为此,向大家推荐一组简单易装、经济实惠的家用型室外电视接收天线。其结构见附图。器材选用: 1.VHF-1、VHF-2接收天线选用V段五单元八木引向天线; 2.UHF-1、UHF-2接收天线选用U段21单元宽带有源振子天线; 3.天线放大器选用“万里通”WB48TG,其增益为48dB(带电源插入器)。该天线系统可同时带1—3台彩电,且每个输出口电平均在43dB以上。采用上述天线系统,能稳定地收看到十套电视节目。以笔者所在的杭州市郊使用
With the improvement of people’s living standards in rural areas, color TV households getting higher and higher rates. Currently in the case of cable has not yet been widespread, users can watch the radio program is also less (usually 4-5), and individual video quality is not high. To this end, to recommend a simple easy to install, affordable home-based outdoor TV receiving antenna. Its structure is shown in the attached drawings. Equipment selection: 1.VHF-1, VHF-2 receiving antenna V-segment five-element Yagi antenna; 2.UHF-1, UHF-2 receiving antenna U segment 21 element broadband active oscillator antenna; 3. Antenna amplifier Use the “marry” WB48TG with a gain of 48dB (with power inserter). The antenna system can simultaneously with 1-3 sets of color TV, and each output level above 43dB. With the above antenna system, ten sets of TV programs can be watched stably. I use the suburb of Hangzhou